Question

Which condition is necessary for a mold fossil to form?

The fossil must be preserved in amber.
Minerals must replace the remains.
The mold must be filled with sediment.
Hard parts of the organism must dissolve.

Answer 1

Answer:

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Answer 2

Answer:

Being buried quickly and preserved away from predators are one of the reasons why marine life fossils are much more common the terrestrial animals as they are rarely preserved. The fossil must be preserved in amber. Minerals must replace the remains. The mold must be filled with sediment.